Synonyms of slacken

1 Syllable

flag, wane, bate, slow, ease, lag, sag, slack

2 Syllables

weaken, soften, peter, loosed, bating, idled, reefing, retard, loiter, eased, relax, lessens, unpins, stunting, ebbing, unfix, bated, loiters, ebbed, loosing, lulling, unwind, remit, loose, temper, slowed, easing, unlax, unscrew, unbar, unbolt, unlash, unstrap, unpin, unlatch, unstick, unreel, inched, dulling, waned, slowing, lessen, lulled, unwound, unbars, unsnaps, lagged, loosen, peters, relent, slake, loosens

3 Syllables

minify, unlacing, unlashed, unsnapped, unlaced, unscrewing, relieving, unwinding, abating, subsiding, loitered, abated, retarding, atrophying, reduce, unreeled, unreeling, decreased, unsticking, lessened, minified, loosened, relenting, loitering, decreasing, diminish, respited, loosening, subsided, minifying, unlace, disenthrall, untighten, unsnapping, relented, respiting, back-water, unfixing, unstrapped, petering, subside, abate

4 Syllables

deescalate, diminishing, diminished, moderate, moderated, moderating, diminishes, mitigate

5 Syllables

de-escalate